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Theodotos Andreou 2018-01-14 13:10:16 +00:00
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<?php
/**
* @file
* Install, update, and uninstall functions for the Forum module.
*/
/**
* Implements hook_install().
*/
function forum_install() {
// Set the weight of the forum.module to 1 so it is loaded after the taxonomy.module.
db_update('system')
->fields(array('weight' => 1))
->condition('name', 'forum')
->execute();
// Forum topics are published by default, but do not have any other default
// options set (for example, they are not promoted to the front page).
variable_set('node_options_forum', array('status'));
}
/**
* Implements hook_enable().
*/
function forum_enable() {
// If we enable forum at the same time as taxonomy we need to call
// field_associate_fields() as otherwise the field won't be enabled until
// hook modules_enabled is called which takes place after hook_enable events.
field_associate_fields('taxonomy');
// Create the forum vocabulary if it does not exist.
$vocabulary = taxonomy_vocabulary_load(variable_get('forum_nav_vocabulary', 0));
if (!$vocabulary) {
$edit = array(
'name' => t('Forums'),
'machine_name' => 'forums',
'description' => t('Forum navigation vocabulary'),
'hierarchy' => 1,
'module' => 'forum',
'weight' => -10,
);
$vocabulary = (object) $edit;
taxonomy_vocabulary_save($vocabulary);
variable_set('forum_nav_vocabulary', $vocabulary->vid);
}
// Create the 'taxonomy_forums' field if it doesn't already exist.
if (!field_info_field('taxonomy_forums')) {
$field = array(
'field_name' => 'taxonomy_forums',
'type' => 'taxonomy_term_reference',
'settings' => array(
'allowed_values' => array(
array(
'vocabulary' => $vocabulary->machine_name,
'parent' => 0,
),
),
),
);
field_create_field($field);
// Create a default forum so forum posts can be created.
$edit = array(
'name' => t('General discussion'),
'description' => '',
'parent' => array(0),
'vid' => $vocabulary->vid,
);
$term = (object) $edit;
taxonomy_term_save($term);
// Create the instance on the bundle.
$instance = array(
'field_name' => 'taxonomy_forums',
'entity_type' => 'node',
'label' => $vocabulary->name,
'bundle' => 'forum',
'required' => TRUE,
'widget' => array(
'type' => 'options_select',
),
'display' => array(
'default' => array(
'type' => 'taxonomy_term_reference_link',
'weight' => 10,
),
'teaser' => array(
'type' => 'taxonomy_term_reference_link',
'weight' => 10,
),
),
);
field_create_instance($instance);
}
// Ensure the forum node type is available.
node_types_rebuild();
$types = node_type_get_types();
node_add_body_field($types['forum']);
}
/**
* Implements hook_uninstall().
*/
function forum_uninstall() {
// Load the dependent Taxonomy module, in case it has been disabled.
drupal_load('module', 'taxonomy');
variable_del('forum_containers');
variable_del('forum_hot_topic');
variable_del('forum_per_page');
variable_del('forum_order');
variable_del('forum_block_num_active');
variable_del('forum_block_num_new');
variable_del('node_options_forum');
field_delete_field('taxonomy_forums');
// Purge field data now to allow taxonomy module to be uninstalled
// if this is the only field remaining.
field_purge_batch(10);
}
/**
* Implements hook_schema().
*/
function forum_schema() {
$schema['forum'] = array(
'description' => 'Stores the relationship of nodes to forum terms.',
'fields' => array(
'nid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => 'The {node}.nid of the node.',
),
'vid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => 'Primary Key: The {node}.vid of the node.',
),
'tid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => 'The {taxonomy_term_data}.tid of the forum term assigned to the node.',
),
),
'indexes' => array(
'forum_topic' => array('nid', 'tid'),
'tid' => array('tid'),
),
'primary key' => array('vid'),
'foreign keys' => array(
'forum_node' => array(
'table' => 'node',
'columns' => array(
'nid' => 'nid',
'vid' => 'vid',
),
),
),
);
$schema['forum_index'] = array(
'description' => 'Maintains denormalized information about node/term relationships.',
'fields' => array(
'nid' => array(
'description' => 'The {node}.nid this record tracks.',
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
),
'title' => array(
'description' => 'The title of this node, always treated as non-markup plain text.',
'type' => 'varchar',
'length' => 255,
'not null' => TRUE,
'default' => '',
),
'tid' => array(
'description' => 'The term ID.',
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
),
'sticky' => array(
'description' => 'Boolean indicating whether the node is sticky.',
'type' => 'int',
'not null' => FALSE,
'default' => 0,
'size' => 'tiny',
),
'created' => array(
'description' => 'The Unix timestamp when the node was created.',
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default'=> 0,
),
'last_comment_timestamp' => array(
'type' => 'int',
'not null' => TRUE,
'default' => 0,
'description' => 'The Unix timestamp of the last comment that was posted within this node, from {comment}.timestamp.',
),
'comment_count' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => 'The total number of comments on this node.',
),
),
'indexes' => array(
'forum_topics' => array('nid', 'tid', 'sticky', 'last_comment_timestamp'),
'created' => array('created'),
'last_comment_timestamp' => array('last_comment_timestamp'),
),
'foreign keys' => array(
'tracked_node' => array(
'table' => 'node',
'columns' => array('nid' => 'nid'),
),
'term' => array(
'table' => 'taxonomy_term_data',
'columns' => array(
'tid' => 'tid',
),
),
),
);
return $schema;
}
/**
* Implements hook_update_dependencies().
*/
function forum_update_dependencies() {
$dependencies['forum'][7003] = array(
// Forum update 7003 uses field API update functions, so must run after
// Field API has been enabled.
'system' => 7020,
// Forum update 7003 relies on updated taxonomy module schema. Ensure it
// runs after all taxonomy updates.
'taxonomy' => 7010,
);
return $dependencies;
}
/**
* Add new index to forum table.
*/
function forum_update_7000() {
db_drop_index('forum', 'nid');
db_add_index('forum', 'forum_topic', array('nid', 'tid'));
}
/**
* Create new {forum_index} table.
*/
function forum_update_7001() {
$forum_index = array(
'description' => 'Maintains denormalized information about node/term relationships.',
'fields' => array(
'nid' => array(
'description' => 'The {node}.nid this record tracks.',
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
),
'title' => array(
'description' => 'The title of this node, always treated as non-markup plain text.',
'type' => 'varchar',
'length' => 255,
'not null' => TRUE,
'default' => '',
),
'tid' => array(
'description' => 'The term ID.',
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
),
'sticky' => array(
'description' => 'Boolean indicating whether the node is sticky.',
'type' => 'int',
'not null' => FALSE,
'default' => 0,
'size' => 'tiny',
),
'created' => array(
'description' => 'The Unix timestamp when the node was created.',
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default'=> 0,
),
'last_comment_timestamp' => array(
'type' => 'int',
'not null' => TRUE,
'default' => 0,
'description' => 'The Unix timestamp of the last comment that was posted within this node, from {comment}.timestamp.',
),
'comment_count' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => 'The total number of comments on this node.',
),
),
'indexes' => array(
'forum_topics' => array('tid', 'sticky', 'last_comment_timestamp'),
),
'foreign keys' => array(
'tracked_node' => array(
'table' => 'node',
'columns' => array('nid' => 'nid'),
),
'term' => array(
'table' => 'taxonomy_term_data',
'columns' => array(
'tid' => 'tid',
),
),
),
);
db_create_table('forum_index', $forum_index);
$select = db_select('node', 'n');
$forum_alias = $select->join('forum', 'f', 'n.vid = f.vid');
$ncs_alias = $select->join('node_comment_statistics', 'ncs', 'n.nid = ncs.nid');
$select
->fields('n', array('nid', 'title', 'sticky', 'created'))
->fields($forum_alias, array('tid'))
->fields($ncs_alias, array('last_comment_timestamp', 'comment_count'));
db_insert('forum_index')
->fields(array('nid', 'title', 'sticky', 'created', 'tid', 'last_comment_timestamp', 'comment_count'))
->from($select)
->execute();
}
/**
* @addtogroup updates-7.x-extra
* @{
*/
/**
* Add new index to forum_index table.
*/
function forum_update_7002() {
db_drop_index('forum_index', 'forum_topics');
db_add_index('forum_index', 'forum_topics', array('nid', 'tid', 'sticky', 'last_comment_timestamp'));
}
/**
* Rename field to 'taxonomy_forums'.
*/
function forum_update_7003() {
$messages = array();
$new_field_name = 'taxonomy_forums';
// Test to see if the taxonomy_forums field exists.
$fields = _update_7000_field_read_fields(array('field_name' => $new_field_name));
if ($fields) {
// Since the field exists, we're done.
return;
}
// Calculate the old field name.
$vid = variable_get('forum_nav_vocabulary', 0);
$vocabulary_machine_name = db_select('taxonomy_vocabulary', 'tv')
->fields('tv', array('machine_name'))
->condition('vid', $vid)
->execute()
->fetchField();
$old_field_name = 'taxonomy_' . $vocabulary_machine_name;
// Read the old fields.
$old_fields = _update_7000_field_read_fields(array('field_name' => $old_field_name));
foreach ($old_fields as $old_field) {
if ($old_field['storage']['type'] != 'field_sql_storage') {
$messages[] = t('Cannot rename field %id (%old_field_name) to %new_field_name because it does not use the field_sql_storage storage type.', array(
'%id' => $old_field['id'],
'%old_field_name' => $old_field_name,
'%new_field_name' => $new_field_name,
));
continue;
}
// Update {field_config}.
db_update('field_config')
->fields(array('field_name' => $new_field_name))
->condition('id', $old_field['id'])
->execute();
// Update {field_config_instance}.
db_update('field_config_instance')
->fields(array('field_name' => $new_field_name))
->condition('field_id', $old_field['id'])
->execute();
// The tables that need updating in the form 'old_name' => 'new_name'.
$tables = array(
'field_data_' . $old_field_name => 'field_data_' . $new_field_name,
'field_revision_' . $old_field_name => 'field_revision_' . $new_field_name,
);
foreach ($tables as $old_table => $new_table) {
$old_column_name = $old_field_name . '_tid';
$new_column_name = $new_field_name . '_tid';
// Rename the column.
db_drop_index($old_table, $old_column_name);
db_change_field($old_table, $old_column_name, $new_column_name, array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => FALSE,
));
db_drop_index($old_table, $new_column_name);
db_add_index($old_table, $new_column_name, array($new_column_name));
// Rename the table.
db_rename_table($old_table, $new_table);
}
}
cache_clear_all('*', 'cache_field', TRUE);
return $messages;
}
/**
* Update {forum_index} so that only published nodes are indexed.
*/
function forum_update_7011() {
$select = db_select('node', 'n')
->fields('n', array('nid'))
->condition('status', 0 );
db_delete('forum_index')
->condition('nid', $select, 'IN')
->execute();
}
/**
* Add 'created' and 'last_comment_timestamp' indexes.
*/
function forum_update_7012() {
db_add_index('forum_index', 'created', array('created'));
db_add_index('forum_index', 'last_comment_timestamp', array('last_comment_timestamp'));
}
/**
* @} End of "addtogroup updates-7.x-extra".
*/